Agricultural irrigation digital ball valve self-closing valve based on Internet of Things

Abstract

The invention discloses an agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, and relates to the technical field of ball valves, the agricultural irrigation digital ball valve self-closing valve comprises a valve body, a connecting pipe is fixedly mounted on the surface of the valve body, and a water inlet pipe is fixedly mounted on the face, away from the valve body, of the connecting pipe; a water outlet pipe is fixedly installed on the face, away from the connecting pipe, of the valve body, a connecting pipe is fixedly installed on the top of the valve body, a ball is arranged on the inner wall of the valve body, a control mechanism is arranged on the top of the connecting pipe, and the output end of the control mechanism is fixedly connected with the top of the ball. The buffer device comprises a sleeve, a carrying box, a rectangular plate, a hollow rod, a round pipe, a pull rod, a first spring, an L-shaped block and a limiting plate, and by changing the distance between the round pipe and the ball body, the slow-down effect exerted by the round pipe on the water flow velocity can be adjusted according to the actual situation.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and particularly to an irrigation digital ball valve self-closing valve for agriculture based on the Internet of Things. Background Art

[0002] An irrigation digital ball valve for agriculture is a modern intelligent control ball valve, specifically used in agricultural irrigation systems to achieve precise water flow control and water-saving management.

[0003] The patent with the patent announcement number CN217762241U relates to a ball valve self-closing valve. It includes a self-closing valve body. One end of the self-closing valve body is integrally provided with an air inlet pipe, and the other end of the self-closing valve body is provided with an air outlet pipe. A valve cavity that communicates with both the air inlet pipe and the air outlet pipe is provided in the middle of the self-closing valve body. It is characterized in that a on-off device is provided in the air inlet pipe, a pressure measuring nozzle is provided on the self-closing valve body, a ball valve is installed on the air outlet pipe, and the pressure measuring nozzle is installed between the ball valve and the valve cavity. By directly arranging the pressure measuring nozzle between the valve cavity and the ball valve, when both the ball valve and the air inlet pipe are in the closed state, the user can punch air into the valve cavity through the pressure measuring nozzle to detect the sealing performance of the self-closing valve.

[0004] In the above patent, by directly arranging the pressure measuring nozzle between the valve cavity and the ball valve, when both the ball valve and the air inlet pipe are in the closed state, the user can punch air into the valve cavity through the pressure measuring nozzle to detect the sealing performance of the self-closing valve. However, the water channels three, two, and one that cannot be adjusted in position will continuously slow down the water flow rate. This continuous flow rate reduction will cause water flow instability or insufficient flow. When the water body flow rate is insufficient, the water body cannot recover to the normal flow rate in time, thus affecting the overall operation efficiency. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an irrigation digital ball valve self-closing valve for agriculture based on the Internet of Things, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, including a valve body body. On the surface of the valve body body, a connecting pipe is fixedly installed. On one side of the connecting pipe away from the valve body body, a water inlet pipe is fixedly installed. On one side of the valve body body away from the connecting pipe, a water outlet pipe is fixedly installed. On the top of the valve body body, a connecting pipe is fixedly installed. Inside the wall of the valve body body, a sphere is provided. On the top of the connecting pipe, a control mechanism is provided. The output end of the control mechanism is fixedly connected to the top of the sphere. When irrigation is required, the sphere is driven to rotate through the output end of the control mechanism. During the rotation of the sphere, the blockage inside the valve body body is released. A chute is opened on the circumferential surface of the connecting pipe, and a buffer device is further included. Among them, the buffer device includes a sleeve, a carrying box, a rectangular plate, a hollow rod, a circular pipe, a pull rod, a first spring, an L-shaped block, and a limiting plate. Push the pull rod towards the sphere. The movement of the pull rod drives the L-shaped block towards the sphere. At the same time, the movement of the pull rod drives the hollow rod towards the sphere. The sleeve is fixedly installed on the surface of the connecting pipe. The carrying box is fixedly penetrated through the circumferential surface of the sleeve. The rectangular plate slides through the inner and outer walls of the carrying box. The hollow rod slides through the inner and outer walls of the rectangular plate. The circular pipe is fixedly installed on the circumferential surface of the hollow rod. The water body contacts the circular pipe during the flowing process. The side of the circular pipe away from the sphere exerts an effect of slowing down the water flow rate. The pull rod is slidably installed inside the hollow rod. The first spring is arranged between the pull rod and the circular pipe. The L-shaped block is fixedly installed on the circumferential surface of the pull rod. The limiting plate is fixedly installed on the inner wall of the carrying box. The circumferential surface of the circular pipe contacts the chute. A rectangular groove is opened on the circumferential surface of the circular pipe. The L-shaped block contacts the inner wall of the rectangular groove. The circumferential surface of the circular pipe contacts the inner wall of the connecting pipe. The inner radius of the circular pipe on the side close to the sphere is greater than the inner radius on the side away from the sphere.

[0007] According to the above technical solution, the circumferential surface of the circular pipe contacts the chute. A sealing layer is provided on the surface of the rectangular plate close to the circular pipe. The sealing layer contacts the inner wall of the carrying box. The movement of the hollow rod drives the rectangular plate towards the sphere. The sealing layer of the rectangular plate always remains in contact with the inner wall of the carrying box during the movement.

[0008] According to the above technical solution, a first arc surface is opened on the side of the L-shaped block away from the pull rod. A limiting groove is opened on the surface of the limiting plate close to the L-shaped block. The L-shaped block contacts the inner wall of the limiting groove. The surface of the L-shaped block in contact with the limiting groove separates during the movement, so that the limiting effect exerted by the limiting plate on the hollow rod is released.

[0009] According to the above technical solution, it further includes a protection device and an auxiliary device; the protection device includes a loading rack, a sliding plate, an elastic sheet, a contact rod, a cylindrical rod, a second spring, a sealing sheet, a pressing plate and a linkage plate. When the sliding plate moves, it stretches the elastic sheet. At the same time, the movement of the sliding plate drives the cylindrical rod to move towards the connecting pipe. The loading rack is fixedly installed on the inner wall of the carrying box. The sliding plate is slidably installed on the inner wall of the loading rack. The elastic sheet is arranged between the sliding plate and the loading rack. The contact rod is fixedly installed on the surface of the sliding plate. The cylindrical rod slidably penetrates through one side of the sliding plate close to the circular pipe. The second spring is arranged between the cylindrical rod and the sliding plate. The sealing sheet is fixedly installed on one side of the cylindrical rod away from the second spring. The pressing plate is fixedly installed on one side of the loading rack close to the sealing sheet. The linkage plate is fixedly installed on one side of the sliding plate away from the hollow rod. The circumferential surface of the contact rod contacts the L-shaped block. The movement of the L-shaped block drives the contact rod to move towards the connecting pipe. The movement of the contact rod drives the sliding plate to move towards the connecting pipe. The side of the sealing sheet away from the cylindrical rod contacts the chute.

[0010] According to the above technical solution, the sealing sheet itself has elasticity. When the sealing sheet is squeezed, it deforms. At the same time, the deformed sealing sheet contacts the chute more closely. A round hole is opened at the position of the sealing sheet close to the hollow rod. The inner wall of the round hole contacts the circumferential surface of the hollow rod.

[0011] According to the above technical solution, a first inclined surface is opened on the side of the pressing plate close to the sealing sheet. The first inclined surface contacts the curved surface of the sealing sheet. When the sealing sheet returns to its original state, the part of the sealing sheet in contact with the first inclined surface still contacts the circumferential surface of the connecting pipe. The concave surface of the sealing sheet contacts the circumferential surface of the connecting pipe.

[0012] According to the above technical solution, the auxiliary device includes a fixed frame, a moving block, a connecting block, a mounting frame, a rotating shaft, an arc-shaped sheet and a plurality of baffle plates. The movement of the moving block drives the mounting frame to move away from the cylindrical rod. The movement of the mounting frame drives the rotating shaft to move away from the cylindrical rod. The fixed frame is fixedly installed on the surface of the loading rack. The moving block is slidably installed on the inner wall of the fixed frame. The connecting block is fixedly installed on the side of the moving block close to the linkage plate. The mounting frame is fixedly installed on the side of the moving block close to the fixed frame. The rotating shaft rotatably penetrates through the inner wall of the fixed frame. The arc-shaped sheet is fixedly installed on the circumferential surface of the rotating shaft. The plurality of baffle plates are fixedly installed on the inner wall of the fixed frame. A hole groove is opened on the side of the connecting block close to the linkage plate. The inner wall of the hole groove contacts the circumferential surface of the linkage plate. The movement of the linkage plate drives the connecting block to move towards the cylindrical rod. The movement of the connecting block drives the moving block to move towards the cylindrical rod. A scroll spring is arranged between the rotating shaft and the mounting frame. The arc-shaped sheet itself has elasticity. The mounting frame places a restriction on the rotation of the arc-shaped sheet. When the mounting frame continues to move, the arc-shaped sheet bends under the influence of resistance.

[0013] According to the above technical solution, several of the baffles are evenly distributed on the inner wall of the fixed frame. A second inclined surface is provided on the side of the baffle close to the arc-shaped piece, and a second arc surface is provided at one end of the baffle away from the fixed frame. The concave surface of the arc-shaped piece contacts the second arc surface of the baffle during movement. When contacting, the baffle exerts a block on the arc-shaped piece.

[0014] The present invention provides an agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, which has the following beneficial effects: (1) For the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, the L-shaped block and the limiting groove are separated, so that the limiting applied by the limiting plate to the hollow rod is released. By standard operation, the limitation on the hollow rod is quickly released, making it more convenient for the operator to adjust the position of the round tube when needed, reducing unnecessary time waste. At the same time, the movement of the hollow rod drives the round tube to move towards the sphere. By changing the distance between the round tube and the sphere, the slowing effect of the round tube on the water flow rate can be adjusted according to the actual situation, ensuring that the function of the round tube can achieve an ideal working effect in different scenarios.

[0015] (2) For the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, the area of contact between the deformed sealing piece and the sliding groove gradually decreases during restoration. The part of the sealing piece in contact with the sliding groove automatically decreases during the adjustment of the round tube, avoiding wear on the part of the sealing piece in contact with the sliding groove during movement, thus maintaining a low maintenance requirement. At the same time, the cylindrical rod exerts a thrust on the sealing piece, and the sealing piece is deformed under extrusion. By the cylindrical rod extruding the part of the sealing piece in contact with the sliding groove, the sealing piece is in closer contact with the sliding groove during deformation, effectively reducing water leakage and providing a second layer of protection for the waterproofing of the rectangular plate.

[0016] (3) For the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, when the arc-shaped piece contacts several linkage plates, it exerts an intermittent resistance on the linkage plates. Through the intermittent resistance exerted by the arc-shaped piece, the speed of the linkage plates during reset is effectively slowed down, avoiding collision between the inner wall of the sleeve and the No. 1 spring and the elastic piece during rapid restoration, thereby improving the safety of overall movement. At the same time, when the arc-shaped piece contacts the second inclined surface, the arc-shaped piece rotates towards the connecting block. By providing the second inclined surface, it prevents the additional resistance exerted by the arc-shaped piece from affecting normal operation when the operator pulls the pull rod, thereby improving the accuracy of the use of the arc-shaped piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the sphere position of the present invention; Figure 3 is a schematic diagram of the structure of the connection pipe and the sleeve of the present invention; Figure 4Schematic diagram of the position structure of the hollow rod and the circular tube of the present invention; Figure 5 Schematic diagram of the internal structure of the buffer device of the present invention; Figure 6 For the present invention Figure 6 Enlarged structure diagram at position A in Figure 7 Schematic diagram of the internal structure of the protection device and the auxiliary device of the present invention; Figure 8 For the present invention Figure 7 Enlarged structure diagram at position B in

[0018] In the figure: 1. Valve body main body; 2. Connecting pipe; 3. Water inlet pipe; 4. Water outlet pipe; 5. Connecting pipe; 6. Sphere; 7. Control mechanism; 8. Sleeve; 9. Carrying box; 10. Rectangular plate; 11. Hollow rod; 12. Circular tube; 13. Pull rod; 14. First spring; 15. L-shaped block; 16. Limiting plate; 171. Loading rack; 172. Sliding plate; 173. Elastic sheet; 174. Contact rod; 175. Cylindrical rod; 176. Second spring; 177. Sealing sheet; 178. Resisting plate; 179. Linking plate; 181. Fixed frame; 182. Moving block; 183. Connecting block; 184. Mounting rack; 185. Rotating shaft; 186. Arc-shaped sheet; 187. Baffle. Specific implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 6, an embodiment of the present invention is: an agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, including a valve body main body 1. On the surface of the valve body main body 1, a connecting pipe 2 is fixedly installed. On one side of the connecting pipe 2 away from the valve body main body 1, a water inlet pipe 3 is fixedly installed. On one side of the valve body main body 1 away from the connecting pipe 2, a water outlet pipe 4 is fixedly installed. On the top of the valve body main body 1, a connecting pipe 5 is fixedly installed. Inside the wall of the valve body main body 1, a sphere 6 is arranged. On the top of the connecting pipe 5, a control mechanism 7 is arranged. The output end of the control mechanism 7 is fixedly connected to the top of the sphere 6. Inside the control mechanism 7, an Internet of Things communication module is arranged, and the control mechanism 7 can be remotely controlled through the Internet of Things. On the circumferential surface of the connecting pipe 2, a chute is opened, and a buffer device is further included; wherein, the buffer device includes a sleeve 8, a carrying box 9, a rectangular plate 10, a hollow rod 11, a circular tube 12, a pull rod 13, a first spring 14, an L-shaped block 15 and a limiting plate 16. The sleeve 8 is fixedly installed on the surface of the connecting pipe 2. The carrying box 9 is fixedly penetrated through the circumferential surface of the sleeve 8. The rectangular plate 10 slides through the inner and outer walls of the carrying box 9. The hollow rod 11 slides through the inner and outer walls of the rectangular plate 10. The circular tube 12 is fixedly installed on the circumferential surface of the hollow rod 11. The pull rod 13 is slidably installed inside the hollow rod 11. The first spring 14 is arranged between the pull rod 13 and the circular tube 12. The L-shaped block 15 is fixedly installed on the circumferential surface of the pull rod 13. The limiting plate 16 is fixedly installed on the inner wall of the carrying box 9. The circumferential surface of the circular tube 12 contacts the chute. On the circumferential surface of the circular tube 12, a rectangular groove is opened. The L-shaped block 15 contacts the inner wall of the rectangular groove. The circumferential surface of the circular tube 12 contacts the inner wall of the connecting pipe 2. By changing the distance between the circular tube 12 and the sphere 6, the buffering effect exerted by the circular tube 12 on the water flow rate can be adjusted according to the actual situation.

[0021] The circumferential surface of the circular tube 12 contacts the chute. On one side of the rectangular plate 10 close to the circular tube 12, a sealing layer is arranged, and the sealing layer contacts the inner wall of the carrying box 9. By arranging a sealing layer on the contact surface between the rectangular plate 10 and the carrying box 9, the waterproof property of the carrying box 9 is effectively improved, thereby improving the safety of operation.

[0022] On one side of the L-shaped block 15 away from the pull rod 13, a first arc surface is opened. On one side of the limiting plate 16 close to the L-shaped block 15, a limiting groove is opened. The L-shaped block 15 contacts the inner wall of the limiting groove. By standardizing the operation, the limitation on the hollow rod 11 can be quickly released, improving the flexibility and efficiency of the operation, and making it more convenient for the operator to quickly adjust the position of the circular tube 12 when needed.

[0023] When this embodiment works, water flows from the water inlet pipe 3 towards the connecting pipe 2. During the flowing process, the water contacts the circular pipe 12. The side of the circular pipe 12 away from the sphere 6 exerts a decelerating effect on the water flow velocity. At the same time, the water needs to move from the inside of the circular pipe 12 towards the valve body 1. When the water moves from the inside of the circular pipe 12, since the inner diameter of the circular pipe 12 changes from narrow to wide, the impact force exerted when the water contacts the sphere 6 is reduced. At the same time, the water stops flowing due to the blockage of the sphere 6. When irrigation is required, the output end of the control mechanism 7 drives the sphere 6 to rotate. After the operation is completed, the control mechanism 7 can control the opening and closing of the sphere 6. During the rotation of the sphere 6, the blockage of the inside of the valve body 1 is released, enabling the water to move towards the water outlet pipe 4 through the inside of the sphere 6. After the water flow velocity increases, it is necessary to shorten the distance between the circular pipe 12 and the sphere 6 to improve the buffering effect. Manually hold the pull rod 13 and move it away from the connecting pipe 2. When the pull rod 13 moves, it stretches the first spring 14, and the first spring 14 deforms due to the stretching. At the same time, the movement of the pull rod 13 drives the L-shaped block 15 to move away from the connecting pipe 2. The surface of the L-shaped block 15 in contact with the limit groove during the movement is separated, so that the limit applied by the limiting plate 16 to the hollow rod 11 is released. By following the standard operation, the limit on the hollow rod 11 is quickly released, improving the flexibility and efficiency of the operation. When the operator needs to quickly adjust the position of the circular pipe 12, the operation is more convenient, reducing unnecessary time waste. After the limit is released, push the pull rod 13 towards the sphere 6. The movement of the pull rod 13 drives the L-shaped block 15 towards the sphere 6. At the same time, the movement of the pull rod 13 drives the hollow rod 11 towards the sphere 6. The movement of the hollow rod 11 drives the rectangular plate 10 towards the sphere 6. The sealing layer of the rectangular plate 10 always remains in contact with the inner wall of the carrier box 9 during the movement. At the same time, the movement of the hollow rod 11 drives the circular pipe 12 towards the sphere 6. After the circular pipe 12 moves to the predetermined position, release the pull rod 13, so that the deformed first spring 14 restores and drives the pull rod 13 to move towards the connecting pipe 2. The movement of the pull rod 13 drives the L-shaped block 15 to move towards the connecting pipe 2. The arc surface 1 of the L-shaped block 15 passes through the limit groove during the movement, so that the limiting plate 16 applies a limit to the hollow rod 11. The hollow rod 11 is limited and cannot move. At the same time, the position where the water contacts the circular pipe 12 changes during the water flow. By changing the distance between the circular pipe 12 and the sphere 6, the decelerating effect exerted by the circular pipe 12 on the water flow velocity can be adjusted according to the actual situation, ensuring that the function of the circular pipe 12 can achieve an ideal working effect in different scenarios.

[0024] Please refer to Figures 1 - 8, on the basis of the above embodiments, in another embodiment of the present invention, a protection device and an auxiliary device are further included; the protection device includes a loading rack 171, a sliding plate 172, an elastic sheet 173, a contact rod 174, a cylindrical rod 175, a second spring 176, a sealing sheet 177, a pressing plate 178 and a linkage plate 179. The loading rack 171 is fixedly installed on the inner wall of the carrying box 9, the sliding plate 172 is slidably installed on the inner wall of the loading rack 171, the elastic sheet 173 is arranged between the sliding plate 172 and the loading rack 171, the contact rod 174 is fixedly installed on the surface of the sliding plate 172, the cylindrical rod 175 slidably penetrates through the side of the sliding plate 172 close to the circular tube 12, the second spring 176 is arranged between the cylindrical rod 175 and the sliding plate 172, the sealing sheet 177 is fixedly installed on the side of the cylindrical rod 175 away from the second spring 176, the pressing plate 178 is fixedly installed on the side of the loading rack 171 close to the sealing sheet 177, the linkage plate 179 is fixedly installed on the side of the sliding plate 172 away from the hollow rod 11, the circumferential surface of the contact rod 174 contacts the L-shaped block 15, and the side of the sealing sheet 177 away from the cylindrical rod 175 contacts the chute. The part where the sealing sheet 177 contacts the chute automatically separates during the adjustment of the circular tube 12, avoiding abrasion of the part where the sealing sheet 177 contacts the chute during movement, so as to maintain a low maintenance requirement.

[0025] The sealing sheet 177 itself has elasticity. A circular hole is provided at the position of the sealing sheet 177 close to the hollow rod 11, and the inner wall of the circular hole contacts the circumferential surface of the hollow rod 11. By squeezing the part where the sealing sheet 177 contacts the chute through the cylindrical rod 175, the part where the sealing sheet 177 contacts the chute is made to contact more tightly during deformation.

[0026] A first inclined surface is provided on the side of the pressing plate 178 close to the sealing sheet 177, and the first inclined surface contacts the curved surface of the sealing sheet 177. The concave surface of the sealing sheet 177 contacts the circumferential surface of the connecting pipe 2. By providing the first inclined surface, the deformed state of the sealing sheet 177 is maintained, so that when the sealing sheet 177 seals the chute, the concave surface of the sealing sheet 177 can fit with the circumferential surface of the connecting pipe 2, thereby improving the sealing effect.

[0027] The auxiliary device includes a fixed frame 181, a moving block 182, a connecting block 183, a mounting frame 184, a rotating shaft 185, an arc-shaped piece 186 and a plurality of baffles 187. The fixed frame 181 is fixedly installed on the surface of the loading frame 171. The moving block 182 is slidably installed on the inner wall of the fixed frame 181. The connecting block 183 is fixedly installed on the side of the moving block 182 close to the linkage plate 179. The mounting frame 184 is fixedly installed on the side of the moving block 182 close to the fixed frame 181. The rotating shaft 185 rotatably penetrates the inner wall of the fixed frame 181. The arc-shaped piece 186 is fixedly installed on the circumferential surface of the rotating shaft 185. The plurality of baffles 187 are fixedly installed on the inner wall of the fixed frame 181. A hole groove is formed on the side of the connecting block 183 close to the linkage plate 179, and the inner wall of the hole groove is in contact with the circumferential surface of the linkage plate 179. A volute spring is arranged between the rotating shaft 185 and the mounting frame 184. The arc-shaped piece 186 itself has elasticity. Through the intermittent resistance exerted by the arc-shaped piece 186, the speed of the linkage plate 179 during reset is effectively reduced, avoiding the collision of the inner wall of the sleeve 8 when the first spring 14 and the elastic piece 173 recover quickly, thereby improving the safety of the overall movement.

[0028] The plurality of baffles 187 are equidistantly distributed on the inner wall of the fixed frame 181. A second inclined surface is formed on the side of the baffle 187 close to the arc-shaped piece 186, and a second arc surface is formed at one end of the baffle 187 away from the fixed frame 181. By providing the second inclined surface, the additional resistance generated by the contact between the arc-shaped piece 186 and the baffle 187 on the linkage plate 179 is effectively reduced, thereby improving the accuracy of the use of the arc-shaped piece 186 and the baffle 187.

[0029] When this embodiment is working, when the limit on the hollow rod 11 is released, as the L-shaped block 15 moves away from the connecting pipe 2, the pressure exerted on the contact rod 174 gradually decreases, causing the deformed elastic piece 173 to start to recover. The recovery of the elastic piece 173 drives the sliding plate 172 to move away from the connecting pipe 2. The movement of the sliding plate 172 drives the linkage plate 179 to move away from the connecting pipe 2. At the same time, during the movement of the sliding plate 172, the pressure exerted on the second spring 176 gradually decreases, causing the deformed second spring 176 to start to recover. During the recovery process of the second spring 176, the reaction force exerted on the cylindrical rod 175 gradually decreases, causing the thrust exerted by the cylindrical rod 175 on the sealing piece 177 to gradually decrease. The deformed sealing piece 177 starts to recover under the action of its own elasticity. When the sealing piece 177 recovers, the area of contact with the chute gradually decreases, while the part of the sealing piece 177 in contact with the first inclined surface still remains in contact with the circumferential surface of the connecting pipe 2. When adjusting the position of the circular pipe 12, the rectangular plate 10 moves to drive the loading rack 171 to move towards the sphere 6. The movement of the loading rack 171 drives the sliding plate 172 to move towards the sphere 6. The movement of the sliding plate 172 drives the cylindrical rod 175 to move towards the sphere 6. The movement of the cylindrical rod 175 drives the sealing piece 177 to move towards the sphere 6. Friction is generated between the surface of the sealing piece 177 in contact with the connecting pipe 2 during the movement. The part of the sealing piece 177 in contact with the chute automatically decreases during the adjustment of the circular pipe 12, avoiding wear of the part of the sealing piece 177 in contact with the chute during movement, thereby maintaining a relatively low maintenance requirement. When the L-shaped block 15 resets, the L-shaped block 15 moves to drive the contact rod 174 to move towards the connecting pipe 2. The movement of the contact rod 174 drives the sliding plate 172 to move towards the connecting pipe 2. During the movement, the sliding plate 172 stretches the elastic piece 173, and the elastic piece 173 deforms under the stretching force. At the same time, the movement of the sliding plate 172 drives the cylindrical rod 175 to move towards the connecting pipe 2. The movement of the cylindrical rod 175 drives the sealing piece 177 to move towards the connecting pipe 2. The concave surface of the sealing piece 177 comes into contact with the chute during the movement. The sealing piece 177 stops moving due to the blockage of the connecting pipe 2, causing the sliding plate 172 to continue moving and squeeze the second spring 176. The second spring 176 deforms under the extrusion force. The deformed second spring 176 exerts a reaction force on the cylindrical rod 175. The cylindrical rod 175 exerts a thrust on the sealing piece 177 under the influence of the reaction force. The sealing piece 177 deforms under the extrusion force. At the same time, the deformed sealing piece 177 comes into closer contact with the chute. By the cylindrical rod 175 squeezing the part of the sealing piece 177 in contact with the chute, the sealing piece 177 comes into closer contact with the chute during deformation, effectively reducing the leakage of moisture, thereby providing a more stable waterproof effect for the rectangular plate 10; When the linkage plate 179 moves away from the connecting pipe 2, the movement of the linkage plate 179 drives the connecting block 183 to move away from the cylindrical rod 175. The movement of the connecting block 183 drives the moving block 182 to move away from the cylindrical rod 175. The movement of the moving block 182 drives the mounting bracket 184 to move away from the cylindrical rod 175. The movement of the mounting bracket 184 drives the rotating shaft 185 to move away from the cylindrical rod 175. The movement of the rotating shaft 185 drives the arc-shaped piece 186 to move away from the cylindrical rod 175. The curved surface of the arc-shaped piece 186 contacts the second inclined surface of the baffle 187 during the movement. The second inclined surface exerts a resistance on the moving arc-shaped piece 186, causing the moving arc-shaped piece 186 to rotate towards the connecting block 183 under the influence of the resistance. The rotation of the arc-shaped piece 186 drives the rotating shaft 185 to rotate towards the connecting block 183. The rotating shaft 185 stretches the scroll spring during the rotation. The scroll spring deforms under the stretching force. When the arc-shaped piece 186 separates from the second inclined surface, the deformed scroll spring begins to recover. The recovery of the scroll spring drives the rotating shaft 185 to return to its original position. The rotation of the rotating shaft 185 drives the arc-shaped piece 186 to return to its original position. By providing the second inclined surface, the additional resistance generated on the linkage plate 179 when the arc-shaped piece 186 contacts the baffle 187 is effectively reduced. This not only improves the accuracy of the use of the arc-shaped piece 186 and the baffle 187 but also enhances the overall stability. When the linkage plate 179 returns to its original position, the movement of the linkage plate 179 drives the connecting block 183 to move towards the cylindrical rod 175. The movement of the connecting block 183 drives the moving block 182 to move towards the cylindrical rod 175. The movement of the moving block 182 drives the mounting bracket 184 to move towards the cylindrical rod 175. The movement of the mounting bracket 184 drives the rotating shaft 185 to move towards the cylindrical rod 175. The movement of the rotating shaft 185 drives the arc-shaped piece 186 to move towards the cylindrical rod 175. The concave surface of the arc-shaped piece 186 contacts the second arc surface of the baffle 187 during the movement. When they contact, the baffle 187 exerts a blocking force on the arc-shaped piece 186, causing the arc-shaped piece 186 to rotate away from the connecting block 183. The rotation of the arc-shaped piece 186 drives the rotating shaft 185 to rotate. The arc-shaped piece 186 contacts the inner wall of the mounting bracket 184 during the rotation. The mounting bracket 184 restricts the rotation of the arc-shaped piece 186. When the mounting bracket 184 continues to move, the arc-shaped piece 186 bends under the influence of the resistance. The bent arc-shaped piece 186 exerts an additional resistance on the linkage plate 179, causing the speed of the linkage plate 179 during its return to be slowed down under the influence of the resistance. After the arc-shaped piece 186 separates from the second arc surface, the deformed arc-shaped piece 186 begins to recover. The recovered arc-shaped piece 186 contacts the second baffle 187 and repeats the above movement to exert an additional resistance on the linkage plate 179, causing the arc-shaped piece 186 to exert an intermittent resistance on the linkage plate 179 when it contacts a number of linkage plates 179. Through the intermittent resistance exerted by the arc-shaped piece 186, the speed of the linkage plate 179 during its return is effectively slowed down, preventing the inner wall of the sleeve 8 from colliding when the first spring 14 and the elastic piece 173 quickly recover.Thereby improving the safety of overall movement.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural irrigation digital ball valve self-closing valve based on the Internet of Things, comprising a valve body (1), characterized in that: The valve body (1) has a connecting pipe (2) fixedly mounted on the surface of the valve body (1), a water inlet pipe (3) fixedly mounted on the side of the connecting pipe (2) away from the valve body (1), a water outlet pipe (4) fixedly mounted on the side of the valve body (1) away from the connecting pipe (2), a connecting pipe (5) fixedly mounted on the top of the valve body (1), a sphere (6) provided on the inner wall of the valve body (1), a control mechanism (7) provided on the top of the connecting pipe (5), an output end of the control mechanism (7) fixedly connected to the top of the sphere (6), a sliding groove provided on the circumferential surface of the connecting pipe (2), and further comprising a buffer device, a protective device and an auxiliary device; The buffer device comprises a sleeve (8), a carrying box (9), a rectangular plate (10), a hollow rod (11), a round tube (12), a pull rod (13), a No. 1 spring (14), an L-shaped block (15) and a limiting plate (16); the sleeve (8) is fixedly mounted on the surface of the connecting tube (2); the carrying box (9) is fixedly penetrated through the circumferential surface of the sleeve (8); the rectangular plate (10) is slidably penetrated through the inner and outer walls of the carrying box (9); the hollow rod (11) is slidably penetrated through the inner and outer walls of the rectangular plate (10); the round tube (12) is fixedly mounted on the hollow rod The pull rod (13) is slidably mounted on the inner wall of the hollow rod (11), the spring (14) is arranged between the pull rod (13) and the circular tube (12), the L-shaped block (15) is fixedly mounted on the circumferential surface of the pull rod (13), the limiting plate (16) is fixedly mounted on the inner wall of the carrying box (9), the circumferential surface of the circular tube (12) is in contact with the slide groove, the circumferential surface of the circular tube (12) is provided with a rectangular groove, the L-shaped block (15) is in contact with the inner wall of the rectangular groove, and the circumferential surface of the circular tube (12) is in contact with the inner wall of the connecting tube (2).

2. According to the Internet of Things-based agricultural irrigation digital ball valve self-closing valve according to claim 1, it is characterized by: The circumferential surface of the circular tube (12) contacts the slide groove, and a sealing layer is provided on one side of the rectangular plate (10) close to the circular tube (12), and the sealing layer contacts the inner wall of the carrying box (9).

3. According to claim 2, the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things is characterized by: A curved surface is provided on a side of the L-shaped block (15) away from the pull rod (13), and a limiting groove is provided on a side of the limiting plate (16) close to the L-shaped block (15), and the L-shaped block (15) is in contact with an inner wall of the limiting groove.

4. According to claim 3, the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things is characterized by: The protective device comprises a loading frame (171), a sliding plate (172), an elastic sheet (173), a contact rod (174), a cylindrical rod (175), a second spring (176), a sealing sheet (177), a stop plate (178) and a linkage plate (179); the loading frame (171) is fixedly mounted on the inner wall of the carrying box (9); the sliding plate (172) is slidably mounted on the inner wall of the loading frame (171); the elastic sheet (173) is arranged between the sliding plate (172) and the loading frame (171); the contact rod (174) is fixedly mounted on the surface of the sliding plate (172); the cylindrical rod (175) is slidably penetrated in the sliding plate (172); The movable plate (172) is disposed on a side close to the circular tube (12); the second spring (176) is arranged between the cylindrical rod (175) and the sliding plate (172); the sealing sheet (177) is fixedly mounted on a side of the cylindrical rod (175) away from the second spring (176); the abutment plate (178) is fixedly mounted on a side of the loading frame (171) close to the sealing sheet (177); the linkage plate (179) is fixedly mounted on a side of the sliding plate (172) away from the hollow rod (11); the circumferential surface of the contact rod (174) contacts the L-shaped block (15); and the side of the sealing sheet (177) away from the cylindrical rod (175) contacts the slide groove.

5. According to claim 4, the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things is characterized by: The sealing sheet (177) itself has elasticity, and a circular hole is provided at a position of the sealing sheet (177) close to the hollow rod (11), and the inner wall of the circular hole is in contact with the circumferential surface of the hollow rod (11).

6. According to claim 5, the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things is characterized by: A first inclined surface is formed on a surface of the abutment plate (178) close to the sealing sheet (177), the first inclined surface contacts the curved surface of the sealing sheet (177), and the inner concave surface of the sealing sheet (177) contacts the circumferential surface of the connecting tube (2).

7. According to claim 6, the agricultural irrigation digital ball valve self-closing valve based on the Internet of Things is characterized by: The auxiliary device comprises a fixed frame (181), a moving block (182), a connecting block (183), a mounting frame (184), a rotating shaft (185), an arc-shaped sheet (186) and a plurality of baffles (187); the fixed frame (181) is fixedly mounted on the surface of the loading frame (171); the moving block (182) is slidably mounted on the inner wall of the fixed frame (181); the connecting block (183) is fixedly mounted on a side of the moving block (182) close to the linkage plate (179); and the mounting frame (184) is fixedly mounted on a side of the moving block (182) close to the fixed The rotating shaft (185) is rotatably connected to the inner wall of the fixed frame (181); the arc-shaped piece (186) is fixedly mounted on the circumferential surface of the rotating shaft (185); a plurality of baffles (187) are fixedly mounted on the inner wall of the fixed frame (181); a hole groove is formed on a side of the connecting block (183) close to the linkage plate (179); the inner wall of the hole groove contacts the circumferential surface of the linkage plate (179); a spiral spring is arranged between the rotating shaft (185) and the mounting frame (184); and the arc-shaped piece (186) itself has elasticity.

8. The agricultural irrigation digital ball valve self-closing valve based on the Internet of Things according to claim 7 is characterized by: A plurality of baffles (187) are equidistantly distributed on the inner wall of the fixed frame (181); a second inclined surface is provided on a surface of the baffle (187) close to the arc-shaped piece (186); and a second arc surface is provided on an end of the baffle (187) away from the fixed frame (181).

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